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PHFS-01 Heat Flux Sensor

The PHFS-01 heat flux sensor is the first low-cost, yet reliable sensor on the market.  It has minimal thickness while still maintaining excellent sensitivity.  This sensor is recommended for permanent placement use such as long term thermal monitoring of windows, walls, ducts, pipes, etc.  This sensor is NIST traceable.


$95 for single/small order quantities*

*Inquire about large quantity order pricing.

  Volume and University discounts available. 

  Price listed for US sales. International pricing may vary.


 - R&D of heat transfer components

 - Energy efficiency of thermal systems

 - Heat transfer education

Thin film PHFS-01 heat flux sensor
heat flux sensor PHFS-01 FluxTeq
Heat Flux Sensor Specifications

Sensor Type             

Encapsulation Material   

Nominal Sensitivity    

Sensor thickness (t)      

Heat Flux Range        

Temperature Range**    

Response Time*       

Sensor Surface Thermocouple 

Sensing Area Dimensions   

Total Sensor Dimensions 

Sensing Area      

Total Sensor Area 

Differential-Temperature Thermopile

Kapton (polyimide)

7.7 mV/(W/cm^2)

380 microns

+/- 150 kW/m^2

-50 to +120 degrees C

0.6 Seconds

Type-T Thermocouple

a = 2.54 cm     b = 2.54 cm

W = 2.7 cm     H = 3.2 cm

6.45 cm^2

8.6 cm^2







Please email for any purchases. Include your shipping address and the number of sensors and types you would like purchase so that we can estimate the shipping and total costs.


Feel free to include any information about your specific application so that we can provide you with the most appropriate heat flux sensor product.


*Response time is for one time constant or 63% sensor output signal to a heat flux step input

** Temperature range may be larger than specified. Further testing is currently being conducted.


Standard sensor orders come with heat flux and thermocouple wire measurement leads of 3 ft in length. If your application requires longer wire leads then we can provide them at a small additional cost per foot. 

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